Die for manufacturing the tongues of car-couplings



(Model.) 2 Sheets-Sheet l.

W. C. KROECTHER.

DIES FOR MANUFACTURING THE TONGUES 0F GAR COUPLINGS.

No. 256,147 Patented Apr. 11,1882.

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l l lll IUHHIIH UNITED STATESl PATENT OFFICE.

WAELLIM C. KROEGHER, OF ALLEGHENY, PENNSYLVANIA.

DIE FOR MANUFACTURING THE TONGUES OF CAR-COUPLINC:`|S.4

SPECIFICATION forming part of Letters Patent No. 256,147, dated April11, 1882.

Application filed July 2l, 1879. Renewed October 26, 1881. (Model.)

To all whom it may concern Beit known that I ,WAELLIM C. KROEGHER, ofAllegheny, in the countyof Allegheny, State of Pennsylvania, haveinvented a new and useful Improvement in Dies for Manufacturing theTongues of Car-Couplings and I do hereby declare that the following is afull and exact description thereof, reference being had to theaccompanying drawings, and to the let-ters of reference marked thereon.

My invention relates to an improvementin dies for manufacturing rotaryhooks or tongues forming part of car-couplings; and the inventionconsists in the means, hereinafter described, for giving the desiredcontour and reduction to the proper size of the rotary hooks or tonguesof the-couplings.

To enable others skilled in the art to make my invention, I will proceedto describe .the manner in which it is carried out.

In the accompanying drawings, which form part of my specilication,Figurel is a top view of the base-die. Fig. 2 is a vertical section of thesame. Fig. 3 is a top view of a die placed withinA the base-die. Fig. 4is a side view of the same. Fig.5 is avertical and longitudinal sectionofthe same. Fig. 6 is an inverted view Of the upper Or moving die. Fig.7 is a side view of the same. Fig. 8 is a top view of the rotatinghooked tongue B. Fig. 9 is a side viewof the same. Fig. 10 is a verticaland longitudinal section of the several dies and said tongue arranged injuxtaposition.

The tongue B is forged into a form approaching that represented in Figs.8 and 9, so that it can be readily entered in the cavity of the die A.The die B being placed in the die A, as indicated in Fig.10, thepartially-formed tongue is heated to about a welding-heat and placed inthe cavity of the die A. The die C is then placed over the cavity of thedie A and resting upon the heated and partiallyformedtongue,(indicatedbyeinFig.10.) Then, by a series of strokes of aSledge-hammer, the tongue B is swaged to the form and size desired. Thekey D (shown in Fig. 10) is then driven through, as indicated by thedotted lines h in Fig. 2, which will loosen up the die B and the tongue(indicated by the letter e) so that it can be readily removed from thedies A and B.

The part of the upper die (marked f) forms the recess g in the tongue B.The upper die may be secured in a drop or to the helve ofy asteam-hammer, and the lower die is secured in a proper position to ananvil arranged with relation to such drop and helve ot' the steamhammer,the latter method of operating the dies A and C being preferable.

By manufacturing the tongue B in the manner and by the meanshereinbefore described it will be swaged to the proper size and desiredWAELLIM C. KROEGHER.

Witnesses:

A. C. JOHNSTON, JAMES J. JOHNSTON.

